fix implementation of which()
fix implementation of which()


git-svn-id: b90ab2797f6146e3ba3e3d8b20782c4c2887e809@101 9ca3f7c1-7366-0410-b1a3-b5c78f85698c

starius/luarocks,usstwxy/luarocks,rrthomas/luarocks,xpol/luavm,keplerproject/luarocks,robooo/luarocks,xiaq/luarocks,xpol/luarocks,rrthomas/luarocks,ignacio/luarocks,tst2005/luarocks,keplerproject/luarocks,xpol/luainstaller,leafo/luarocks,aryajur/luarocks,luarocks/luarocks,keplerproject/luarocks,lxbgit/luarocks,leafo/luarocks,ignacio/luarocks,lxbgit/luarocks,xpol/luainstaller,keplerproject/luarocks,tarantool/luarocks,tst2005/luarocks,xiaq/luarocks,coderstudy/luarocks,usstwxy/luarocks,xpol/luavm,usstwxy/luarocks,xpol/luainstaller,lxbgit/luarocks,aryajur/luarocks,xiaq/luarocks,rrthomas/luarocks,coderstudy/luarocks,xpol/luarocks,luarocks/luarocks,rrthomas/luarocks,starius/luarocks,xpol/luarocks,aryajur/luarocks,tst2005/luarocks,luarocks/luarocks,robooo/luarocks,robooo/luarocks,ignacio/luarocks,coderstudy/luarocks,aryajur/luarocks,leafo/luarocks,usstwxy/luarocks,xpol/luavm,xpol/luavm,xpol/luavm,xiaq/luarocks,lxbgit/luarocks,starius/luarocks,coderstudy/luarocks,xpol/luarocks,xpol/luainstaller,ignacio/luarocks,starius/luarocks,tarantool/luarocks,robooo/luarocks,tst2005/luarocks,tarantool/luarocks